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Preparation method of moisture-proof porous foamed aluminum

A technology of porous foam and preparation steps, applied in the field of aluminum foam preparation, can solve the problems of inability to meet the market requirements of aluminum materials, low porosity, poor sound absorption and the like

Inactive Publication Date: 2018-09-25
FOSHAN JIUBAI TECH INFORMATION CONSULTATION CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention: Aiming at the defects of low porosity, poor sound absorption and poor moisture resistance in ordinary aluminum foam, which cannot meet the market requirements of aluminum materials, a preparation method of moisture-proof porous aluminum foam is provided

Method used

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Embodiment Construction

[0024] According to the mass ratio of 4:2:1, mix linseed oil, diethanolamine and sodium ethylate in a beaker, stir and react for 35-45min at a temperature of 95-105°C under nitrogen protection conditions, and obtain the amino product, and then the amino product , aluminum powder and deionized water in a mass ratio of 1:5:2, mixed and stirred for 45-60 minutes, dried and discharged to obtain modified aluminum powder; weigh 0.1-0.2kg of soybeans, 45-55g of konjac glucomannan and 24 ~32g of xanthan gum is mixed and placed in a grinder, ground at a speed of 100~120r / min for 13~15min, then passed through an 80-mesh sieve, and the sieved mixed powder is collected, and sieved and mixed according to a mass ratio of 1:5. Mix the powder and deionized water in a beaker, stir at a temperature of 75-80°C for 8-11 minutes to obtain a mixture, then add sodium carbonate with 3% of the weight of the mixture to the mixture, and mix it at a temperature of 92-96°C Mix and stir for 35 to 45 minute...

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Abstract

The invention discloses a preparation method of moisture-proof porous foamed aluminum and belongs to the technical field of preparation of foamed aluminum. Firstly, linseed oil is modified with an ammonolysis process, lipophilic ester groups of the modified linseed oil are introduced into a molecular chain of a substrate, so that hydrophilic groups in the substrate are converted into hydrophobic groups, besides, a micro-corrosion reaction is performed on the substrate, and pores of aluminum powder are increased. Soybeans, konjac glucomannan and xanthan gum are mixed and ground, sieved mixed powder is obtained, the sieved mixed powder is mixed with deionized water and sodium carbonate, the mixture is subjected to a stirring reaction under the high-temperature condition, home-made tofu is obtained, the home-made tofu and a foaming agent are jointly foamed, modified foamed zeolite slurry is obtained, the modified foamed zeolite slurry is uniformly smeared on the surface of fermented tofu,drying treatment is performed, a porous foaming product is taken out, the porosity of the inside structure of zeolite is increased, besides, the porosity of the substrate is increased, the sound absorption of the foamed aluminum is improved, and the moisture-proof porous foamed aluminum has broad application prospects.

Description

technical field [0001] The invention discloses a method for preparing moisture-proof porous foamed aluminum, which belongs to the technical field of foamed aluminum preparation. Background technique [0002] Aluminum foam is made by adding additives to pure aluminum or aluminum alloy and undergoing a foaming process, which has both metal and bubble characteristics. It has low density, high impact absorption ability, high temperature resistance, strong fire resistance, corrosion resistance, sound insulation and noise reduction, low thermal conductivity, high electromagnetic shielding, strong weather resistance, filtering ability, easy processing, easy installation, and high forming accuracy , Can carry out surface coating. [0003] As a sound-absorbing and sound-insulating material: aluminum foam can be used for urban light rail, elevated highways, underground tunnels, noise control of mechanical equipment, and improvement of acoustic rooms, multi-functional halls and other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11
Inventor 沈春霞杨明忠陈可
Owner FOSHAN JIUBAI TECH INFORMATION CONSULTATION CO LTD
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